Erencan Ceyhan

I just checked that discussion and everything I was wondering was already discussed there. I searched issues about faults but I forgot to check closed issues, so this duplicate issue...

If it does not complicate things, IMO using direct return (`return io::EOF;`, `int? a = foo() ?? io::EOF;`) would be better. If an error indicator is really needed and postfix...

Even though it is pretty small, I think requirement of `fn` for functions bothers me a bit. It is nice for lambdas, but named functions can probably be parsed without...